717 lines
22 KiB
C
717 lines
22 KiB
C
/*********************************************************************
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*
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* This is based on code created by Peter Harvey,
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* (pharvey@codebydesign.com).
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*
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* Modified and extended by Nick Gorham
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* (nick@lurcher.org).
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*
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* Any bugs or problems should be considered the fault of Nick and not
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* Peter.
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*
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* copyright (c) 1999 Nick Gorham
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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**********************************************************************
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*
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* $Id: SQLColAttribute.c,v 1.19 2009/02/18 17:59:08 lurcher Exp $
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*
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* $Log: SQLColAttribute.c,v $
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* Revision 1.19 2009/02/18 17:59:08 lurcher
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* Shift to using config.h, the compile lines were making it hard to spot warnings
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*
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* Revision 1.18 2009/02/17 09:47:44 lurcher
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* Clear up a number of bugs
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*
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* Revision 1.17 2008/09/29 14:02:43 lurcher
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* Fix missing dlfcn group option
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*
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* Revision 1.16 2007/04/02 10:50:17 lurcher
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* Fix some 64bit problems (only when sizeof(SQLLEN) == 8 )
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*
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* Revision 1.15 2006/03/08 09:18:41 lurcher
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* fix silly typo that was using sizeof( SQL_WCHAR ) instead of SQLWCHAR
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*
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* Revision 1.14 2004/11/22 17:02:48 lurcher
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* Fix unicode/ansi conversion in the SQLGet functions
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*
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* Revision 1.13 2004/10/30 20:19:21 peteralexharvey
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* ODBC spec says last arg for SQLColAttribute() is SQLPOINTER not (SQLEN*).
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* So switched back to SQLPOINTER.
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*
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* Revision 1.12 2004/10/29 10:00:35 lurcher
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* Fix SQLColAttribute protype
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*
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* Revision 1.11 2003/10/30 18:20:45 lurcher
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*
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* Fix broken thread protection
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* Remove SQLNumResultCols after execute, lease S4/S% to driver
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* Fix string overrun in SQLDriverConnect
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* Add initial support for Interix
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*
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* Revision 1.10 2003/04/10 13:45:51 lurcher
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*
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* Alter the way that SQLDataSources returns the description field (again)
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*
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* Revision 1.9 2003/04/09 08:42:18 lurcher
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*
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* Allow setting of odbcinstQ lib from odbcinst.ini and Environment
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*
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* Revision 1.8 2003/02/27 12:19:39 lurcher
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*
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* Add the A functions as well as the W
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*
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* Revision 1.7 2002/12/05 17:44:30 lurcher
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*
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* Display unknown return values in return logging
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*
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* Revision 1.6 2002/11/11 17:10:06 lurcher
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*
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* VMS changes
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*
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* Revision 1.5 2002/08/19 09:11:49 lurcher
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*
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* Fix Maxor ineffiecny in Postgres Drivers, and fix a return state
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*
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* Revision 1.4 2002/07/24 08:49:51 lurcher
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*
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* Alter UNICODE support to use iconv for UNICODE-ANSI conversion
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*
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* Revision 1.3 2002/04/25 15:16:46 lurcher
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*
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* Fix bug with SQLCOlAttribute(s)(W) where a column of zero could not be
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* used to get the count value
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*
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* Revision 1.2 2001/11/16 11:39:17 lurcher
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*
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* Add mapping between ODBC 2 and ODBC 3 types for SQLColAttribute(s)(W)
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*
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* Revision 1.1.1.1 2001/10/17 16:40:05 lurcher
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*
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* First upload to SourceForge
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*
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* Revision 1.6 2001/07/03 09:30:41 nick
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*
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* Add ability to alter size of displayed message in the log
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*
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* Revision 1.5 2001/07/02 17:09:37 nick
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*
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* Add some portability changes
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*
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* Revision 1.4 2001/04/12 17:43:35 nick
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*
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* Change logging and added autotest to odbctest
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*
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* Revision 1.3 2001/04/03 16:34:12 nick
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*
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* Add support for strangly broken unicode drivers
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*
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* Revision 1.2 2000/12/31 20:30:54 nick
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*
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* Add UNICODE support
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*
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* Revision 1.1.1.1 2000/09/04 16:42:52 nick
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* Imported Sources
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*
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* Revision 1.8 2000/06/20 13:30:07 ngorham
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*
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* Fix problems when using bookmarks
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*
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* Revision 1.7 1999/11/13 23:40:58 ngorham
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*
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* Alter the way DM logging works
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* Upgrade the Postgres driver to 6.4.6
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*
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* Revision 1.6 1999/10/24 23:54:17 ngorham
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*
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* First part of the changes to the error reporting
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*
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* Revision 1.5 1999/10/09 00:56:16 ngorham
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*
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* Added Manush's patch to map ODBC 3-2 datetime values
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*
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* Revision 1.4 1999/09/21 22:34:24 ngorham
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*
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* Improve performance by removing unneeded logging calls when logging is
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* disabled
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*
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* Revision 1.3 1999/07/10 21:10:15 ngorham
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*
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* Adjust error sqlstate from driver manager, depending on requested
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* version (ODBC2/3)
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*
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* Revision 1.2 1999/07/04 21:05:07 ngorham
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*
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* Add LGPL Headers to code
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*
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* Revision 1.1.1.1 1999/05/29 13:41:05 sShandyb
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* first go at it
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*
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* Revision 1.2 1999/06/03 22:20:25 ngorham
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*
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* Finished off the ODBC3-2 mapping
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*
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* Revision 1.1.1.1 1999/05/27 18:23:17 pharvey
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* Imported sources
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*
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* Revision 1.4 1999/05/03 19:50:43 nick
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* Another check point
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*
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* Revision 1.3 1999/04/30 16:22:47 nick
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* Another checkpoint
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*
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* Revision 1.2 1999/04/29 20:47:37 nick
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* Another checkpoint
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*
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* Revision 1.1 1999/04/25 23:06:11 nick
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* Initial revision
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*
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*
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**********************************************************************/
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#include <config.h>
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#include "drivermanager.h"
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static char const rcsid[]= "$RCSfile: SQLColAttribute.c,v $ $Revision: 1.19 $";
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SQLINTEGER map_ca_odbc3_to_2( SQLINTEGER field_identifier )
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{
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switch( field_identifier )
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{
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case SQL_DESC_COUNT:
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field_identifier = SQL_COLUMN_COUNT;
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break;
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case SQL_DESC_TYPE:
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field_identifier = SQL_COLUMN_TYPE;
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break;
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case SQL_DESC_LENGTH:
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field_identifier = SQL_COLUMN_LENGTH;
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break;
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case SQL_DESC_PRECISION:
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field_identifier = SQL_COLUMN_PRECISION;
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break;
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case SQL_DESC_SCALE:
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field_identifier = SQL_COLUMN_SCALE;
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break;
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case SQL_DESC_NULLABLE:
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field_identifier = SQL_COLUMN_NULLABLE;
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break;
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case SQL_DESC_NAME:
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field_identifier = SQL_COLUMN_NAME;
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break;
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default:
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break;
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}
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return field_identifier;
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}
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SQLRETURN SQLColAttributeA( SQLHSTMT statement_handle,
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SQLSMALLINT column_number,
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SQLSMALLINT field_identifier,
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SQLPOINTER character_attribute,
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SQLSMALLINT buffer_length,
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SQLSMALLINT *string_length,
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SQLLEN *numeric_attribute )
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{
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return SQLColAttribute( statement_handle,
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(SQLUSMALLINT) column_number,
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(SQLUSMALLINT) field_identifier,
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character_attribute,
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buffer_length,
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string_length,
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numeric_attribute );
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}
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SQLRETURN SQLColAttribute ( SQLHSTMT statement_handle,
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SQLUSMALLINT column_number,
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SQLUSMALLINT field_identifier,
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SQLPOINTER character_attribute,
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SQLSMALLINT buffer_length,
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SQLSMALLINT *string_length,
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SQLLEN *numeric_attribute )
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{
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DMHSTMT statement = (DMHSTMT) statement_handle;
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SQLRETURN ret = 0;
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SQLCHAR s1[ 100 + LOG_MESSAGE_LEN ];
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int isStringAttr;
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/*
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* check statement
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*/
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if ( !__validate_stmt( statement ))
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{
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dm_log_write( __FILE__,
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__LINE__,
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LOG_INFO,
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LOG_INFO,
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"Error: SQL_INVALID_HANDLE" );
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return SQL_INVALID_HANDLE;
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}
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function_entry( statement );
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if ( log_info.log_flag )
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{
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sprintf( statement -> msg, "\n\t\tEntry:\
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\n\t\t\tStatement = %p\
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\n\t\t\tColumn Number = %d\
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\n\t\t\tField Identifier = %s\
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\n\t\t\tCharacter Attr = %p\
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\n\t\t\tBuffer Length = %d\
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\n\t\t\tString Length = %p\
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\n\t\t\tNumeric Attribute = %p",
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statement,
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column_number,
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__col_attr_as_string( s1, field_identifier ),
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character_attribute,
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buffer_length,
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string_length,
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numeric_attribute );
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dm_log_write( __FILE__,
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__LINE__,
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LOG_INFO,
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LOG_INFO,
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statement -> msg );
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}
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thread_protect( SQL_HANDLE_STMT, statement );
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if ( column_number == 0 &&
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statement -> bookmarks_on == SQL_UB_OFF && statement -> connection -> bookmarks_on == SQL_UB_OFF &&
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field_identifier != SQL_DESC_COUNT )
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{
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dm_log_write( __FILE__,
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__LINE__,
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LOG_INFO,
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LOG_INFO,
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"Error: 07009" );
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__post_internal_error_api( &statement -> error,
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ERROR_07009, NULL,
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statement -> connection -> environment -> requested_version,
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SQL_API_SQLCOLATTRIBUTE );
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return function_return_nodrv( SQL_HANDLE_STMT, statement, SQL_ERROR );
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}
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/*
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* Commented out for now because most drivers can not calc num cols
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* before Execute (they have no parse). - PAH
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*
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if ( field_identifier != SQL_DESC_COUNT &&
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statement -> numcols < column_number )
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{
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__post_internal_error( &statement -> error,
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ERROR_07009, NULL,
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statement -> connection -> environment -> requested_version );
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return function_return( statement, SQL_ERROR );
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}
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*/
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/*
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* check states
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*/
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if ( statement -> state == STATE_S1 )
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{
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dm_log_write( __FILE__,
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__LINE__,
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LOG_INFO,
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LOG_INFO,
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"Error: HY010" );
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__post_internal_error( &statement -> error,
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ERROR_HY010, NULL,
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statement -> connection -> environment -> requested_version );
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return function_return_nodrv( SQL_HANDLE_STMT, statement, SQL_ERROR );
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}
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/* MS Driver manager passes this to driver
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else if ( statement -> state == STATE_S2 &&
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field_identifier != SQL_DESC_COUNT )
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{
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dm_log_write( __FILE__,
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__LINE__,
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LOG_INFO,
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LOG_INFO,
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"Error: 07005" );
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__post_internal_error( &statement -> error,
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ERROR_07005, NULL,
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statement -> connection -> environment -> requested_version );
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return function_return( SQL_HANDLE_STMT, statement, SQL_ERROR );
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}
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*/
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else if ( statement -> state == STATE_S4 )
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{
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dm_log_write( __FILE__,
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__LINE__,
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LOG_INFO,
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LOG_INFO,
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"Error: 24000" );
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__post_internal_error( &statement -> error,
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ERROR_24000, NULL,
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statement -> connection -> environment -> requested_version );
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return function_return_nodrv( SQL_HANDLE_STMT, statement, SQL_ERROR );
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}
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else if ( statement -> state == STATE_S8 ||
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statement -> state == STATE_S9 ||
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statement -> state == STATE_S10 ||
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statement -> state == STATE_S13 ||
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statement -> state == STATE_S14 ||
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statement -> state == STATE_S15 )
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{
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dm_log_write( __FILE__,
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__LINE__,
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LOG_INFO,
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LOG_INFO,
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"Error: HY010" );
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__post_internal_error( &statement -> error,
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ERROR_HY010, NULL,
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statement -> connection -> environment -> requested_version );
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return function_return_nodrv( SQL_HANDLE_STMT, statement, SQL_ERROR );
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}
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if ( statement -> state == STATE_S11 ||
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statement -> state == STATE_S12 )
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{
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if ( statement -> interupted_func != SQL_API_SQLCOLATTRIBUTE )
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{
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dm_log_write( __FILE__,
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__LINE__,
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LOG_INFO,
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LOG_INFO,
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"Error: HY010" );
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__post_internal_error( &statement -> error,
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ERROR_HY010, NULL,
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statement -> connection -> environment -> requested_version );
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return function_return_nodrv( SQL_HANDLE_STMT, statement, SQL_ERROR );
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}
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}
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switch( field_identifier )
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{
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case SQL_DESC_AUTO_UNIQUE_VALUE:
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case SQL_DESC_CASE_SENSITIVE:
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case SQL_DESC_CONCISE_TYPE:
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case SQL_DESC_COUNT:
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case SQL_DESC_DISPLAY_SIZE:
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case SQL_DESC_FIXED_PREC_SCALE:
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case SQL_DESC_LENGTH:
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case SQL_DESC_NULLABLE:
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case SQL_DESC_NUM_PREC_RADIX:
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case SQL_DESC_OCTET_LENGTH:
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case SQL_DESC_PRECISION:
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case SQL_DESC_SCALE:
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case SQL_DESC_SEARCHABLE:
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case SQL_DESC_TYPE:
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case SQL_DESC_UNNAMED:
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case SQL_DESC_UNSIGNED:
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case SQL_DESC_UPDATABLE:
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isStringAttr = 0;
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break;
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case SQL_COLUMN_QUALIFIER_NAME:
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case SQL_COLUMN_NAME:
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case SQL_COLUMN_LABEL:
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case SQL_COLUMN_OWNER_NAME:
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case SQL_COLUMN_TABLE_NAME:
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case SQL_COLUMN_TYPE_NAME:
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case SQL_DESC_BASE_COLUMN_NAME:
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case SQL_DESC_BASE_TABLE_NAME:
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case SQL_DESC_LITERAL_PREFIX:
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case SQL_DESC_LITERAL_SUFFIX:
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case SQL_DESC_LOCAL_TYPE_NAME:
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case SQL_DESC_NAME:
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if ( buffer_length < 0 && buffer_length != SQL_NTS )
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{
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__post_internal_error( &statement -> error,
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ERROR_HY090, NULL,
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statement -> connection -> environment -> requested_version );
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return function_return_nodrv( SQL_HANDLE_STMT, statement, SQL_ERROR );
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}
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default:
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isStringAttr = buffer_length >= 0;
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break;
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}
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if ( statement -> connection -> unicode_driver )
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{
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if ( !CHECK_SQLCOLATTRIBUTEW( statement -> connection ))
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{
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if ( CHECK_SQLCOLATTRIBUTESW( statement -> connection ))
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{
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SQLWCHAR *s1 = NULL;
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/*
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* map to the ODBC2 function
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*/
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field_identifier = map_ca_odbc3_to_2( field_identifier );
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switch( field_identifier )
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{
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case SQL_COLUMN_QUALIFIER_NAME:
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case SQL_COLUMN_NAME:
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case SQL_COLUMN_LABEL:
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case SQL_COLUMN_OWNER_NAME:
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case SQL_COLUMN_TABLE_NAME:
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case SQL_COLUMN_TYPE_NAME:
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case SQL_DESC_BASE_COLUMN_NAME:
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case SQL_DESC_BASE_TABLE_NAME:
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case SQL_DESC_LITERAL_PREFIX:
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case SQL_DESC_LITERAL_SUFFIX:
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case SQL_DESC_LOCAL_TYPE_NAME:
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case SQL_DESC_NAME:
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if ( SQL_SUCCEEDED( ret ) && character_attribute && buffer_length > 0 )
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{
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s1 = calloc( sizeof( SQLWCHAR ) * ( buffer_length + 1 ), 1);
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}
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break;
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default:
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break;
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}
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ret = SQLCOLATTRIBUTESW( statement -> connection,
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statement -> driver_stmt,
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column_number,
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field_identifier,
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s1 ? s1 : character_attribute,
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buffer_length,
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string_length,
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numeric_attribute );
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switch( field_identifier )
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{
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case SQL_COLUMN_QUALIFIER_NAME:
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case SQL_COLUMN_NAME:
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case SQL_COLUMN_LABEL:
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case SQL_COLUMN_OWNER_NAME:
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case SQL_COLUMN_TABLE_NAME:
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case SQL_COLUMN_TYPE_NAME:
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case SQL_DESC_BASE_COLUMN_NAME:
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case SQL_DESC_BASE_TABLE_NAME:
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case SQL_DESC_LITERAL_PREFIX:
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case SQL_DESC_LITERAL_SUFFIX:
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case SQL_DESC_LOCAL_TYPE_NAME:
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case SQL_DESC_NAME:
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if ( SQL_SUCCEEDED( ret ) && character_attribute && s1 )
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{
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unicode_to_ansi_copy( character_attribute, buffer_length, s1, SQL_NTS, statement -> connection, NULL );
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|
}
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if ( SQL_SUCCEEDED( ret ) && string_length )
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|
{
|
|
*string_length /= sizeof( SQLWCHAR );
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if ( s1 )
|
|
{
|
|
free( s1 );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
dm_log_write( __FILE__,
|
|
__LINE__,
|
|
LOG_INFO,
|
|
LOG_INFO,
|
|
"Error: IM001" );
|
|
|
|
__post_internal_error( &statement -> error,
|
|
ERROR_IM001, NULL,
|
|
statement -> connection -> environment -> requested_version );
|
|
|
|
return function_return_nodrv( SQL_HANDLE_STMT, statement, SQL_ERROR );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
SQLWCHAR *s1 = NULL;
|
|
|
|
SQLSMALLINT unibuf_len;
|
|
if ( isStringAttr && character_attribute && buffer_length > 0 )
|
|
{
|
|
s1 = calloc( sizeof( SQLWCHAR ) * ( buffer_length + 1 ), 1);
|
|
/* Do not overflow, since SQLSMALLINT can only hold -32768 <= x <= 32767 */
|
|
unibuf_len = buffer_length > 16383 ? buffer_length : sizeof( SQLWCHAR ) * buffer_length;
|
|
}
|
|
|
|
ret = SQLCOLATTRIBUTEW( statement -> connection,
|
|
statement -> driver_stmt,
|
|
column_number,
|
|
field_identifier,
|
|
s1 ? s1 : character_attribute,
|
|
s1 ? unibuf_len : buffer_length,
|
|
string_length,
|
|
numeric_attribute );
|
|
|
|
if ( SQL_SUCCEEDED( ret ) && isStringAttr && buffer_length > 0 )
|
|
{
|
|
if ( character_attribute && s1 )
|
|
{
|
|
unicode_to_ansi_copy( character_attribute, buffer_length, s1, SQL_NTS, statement -> connection, NULL );
|
|
}
|
|
/*
|
|
BUGBUG: Windows DM returns the number of bytes for the Unicode string
|
|
but only for certain ODBC-defined string fields, and when truncating
|
|
*/
|
|
switch ( field_identifier )
|
|
{
|
|
case SQL_COLUMN_QUALIFIER_NAME:
|
|
case SQL_COLUMN_NAME:
|
|
case SQL_COLUMN_LABEL:
|
|
case SQL_COLUMN_OWNER_NAME:
|
|
case SQL_COLUMN_TABLE_NAME:
|
|
case SQL_COLUMN_TYPE_NAME:
|
|
case SQL_DESC_BASE_COLUMN_NAME:
|
|
case SQL_DESC_BASE_TABLE_NAME:
|
|
case SQL_DESC_LITERAL_PREFIX:
|
|
case SQL_DESC_LITERAL_SUFFIX:
|
|
case SQL_DESC_LOCAL_TYPE_NAME:
|
|
case SQL_DESC_NAME:
|
|
if ( ret == SQL_SUCCESS && string_length )
|
|
{
|
|
*string_length /= sizeof( SQLWCHAR );
|
|
}
|
|
break;
|
|
default:
|
|
if ( string_length )
|
|
{
|
|
*string_length /= sizeof( SQLWCHAR );
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( s1 )
|
|
{
|
|
free( s1 );
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if ( !CHECK_SQLCOLATTRIBUTE( statement -> connection ))
|
|
{
|
|
/*
|
|
* map ODBC 3 types to ODBC 2
|
|
*/
|
|
|
|
if ( CHECK_SQLCOLATTRIBUTES( statement -> connection ))
|
|
{
|
|
/*
|
|
* map to the ODBC2 function
|
|
*/
|
|
|
|
field_identifier = map_ca_odbc3_to_2( field_identifier );
|
|
|
|
ret = SQLCOLATTRIBUTES( statement -> connection,
|
|
statement -> driver_stmt,
|
|
column_number,
|
|
field_identifier,
|
|
character_attribute,
|
|
buffer_length,
|
|
string_length,
|
|
numeric_attribute );
|
|
}
|
|
else
|
|
{
|
|
dm_log_write( __FILE__,
|
|
__LINE__,
|
|
LOG_INFO,
|
|
LOG_INFO,
|
|
"Error: IM001" );
|
|
|
|
__post_internal_error( &statement -> error,
|
|
ERROR_IM001, NULL,
|
|
statement -> connection -> environment -> requested_version );
|
|
return function_return_nodrv( SQL_HANDLE_STMT, statement, SQL_ERROR );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
ret = SQLCOLATTRIBUTE( statement -> connection,
|
|
statement -> driver_stmt,
|
|
column_number,
|
|
field_identifier,
|
|
character_attribute,
|
|
buffer_length,
|
|
string_length,
|
|
numeric_attribute );
|
|
}
|
|
}
|
|
|
|
if ( ret == SQL_STILL_EXECUTING )
|
|
{
|
|
statement -> interupted_func = SQL_API_SQLCOLATTRIBUTE;
|
|
if ( statement -> state != STATE_S11 &&
|
|
statement -> state != STATE_S12 )
|
|
statement -> state = STATE_S11;
|
|
}
|
|
else if ( SQL_SUCCEEDED( ret ))
|
|
{
|
|
/*
|
|
* map ODBC 3 datetime fields to ODBC2
|
|
*/
|
|
|
|
if ( field_identifier == SQL_COLUMN_TYPE &&
|
|
numeric_attribute )
|
|
{
|
|
*(SQLINTEGER*)numeric_attribute=
|
|
__map_type(MAP_SQL_D2DM, statement->connection,
|
|
*(SQLINTEGER*)numeric_attribute);
|
|
}
|
|
}
|
|
|
|
if ( log_info.log_flag )
|
|
{
|
|
sprintf( statement -> msg,
|
|
"\n\t\tExit:[%s]",
|
|
__get_return_status( ret, s1 ));
|
|
|
|
dm_log_write( __FILE__,
|
|
__LINE__,
|
|
LOG_INFO,
|
|
LOG_INFO,
|
|
statement -> msg );
|
|
}
|
|
|
|
return function_return( SQL_HANDLE_STMT, statement, ret );
|
|
}
|